Installing Equipment
42
Connection to Central Controller REGARD Ex:
— The cable resistance must not exceed 10
Ω
per core.
This results in the following maximum distances for the various cross-sections:
●
Connect terminals 1, 2 and 3 of the sensing heads with the terminals 10, 11 and
12 of the device rack.
●
Carefully connect all wires of the signal cable.
The signal cable has to be selected in accordance to local electrical codes and
the temperatures it will be used in.
Core cross-section
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0mm
2
maximum cable length
450 m
750 m
1 200 m
1 800 m
10
11
12
24 V
0 V
0052344
7_06.eps
➀ ➁ ➂
PE
3
2
1
PE
1
2
3
4
REGARD Ex
REGARD Ex
10
11
12
24 V
0 V
1
2
3
Summary of Contents for SE Ex HT M
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